haha, I remember how I laughed in December on the two clowns

chasing a fairy
and chasing it while it was obvious they have trouble even "walking" in the blockchain
They didnt even bother to check for the most common addresses used by the biggest exchanges...
Just imagine you had the skillset that allowed you to hack at a tor market holding BTC. But you would suddenly have no idea on how to cover your tracks in the blockchain ( which takes little knowledge and time?).
It takes little common sense, a drop of creative thinking, 3 spoons of googling, about 12 hours of mixing through alts and mixers + sending random tiny amounts to random addresses and some patience with cashing out. No one, no matter how resourceful and determined, can tell what went where.
I would bet that there was never more then say 30k BTC on Sheep at one time.
The real Sheep theft was probably much smaller.